| 摘要 |
PROBLEM TO BE SOLVED: To stabilize a meniscus position of a liquid in a liquid ejection nozzle by suppressing the rapid supply of the liquid to a liquid ejection head from a liquid tank, in a head cartridge for ejecting the liquid, stored in the liquid tank, from the liquid ejection nozzle of the liquid ejection head. SOLUTION: This head cartridge 1 for supplying and ejecting ink 3 in an ink tank 2 to a print head 4 is equipped with an ink supply pipe 24 for supplying the ink 3 in the ink tank 2 to the print head 4, a first valve 26 for opening/closing a liquid channel of the ink supply pipe 24, and an outside-air communication hole 21 for taking in air, equivalent to the quantity of the reduced ink 3, into the ink tank 2 when the quantity of the ink 3 is reduced by supplying the ink 3 in the ink tank 2 to the print head 4. A second valve 29, which is provided between an opening/closing port of the first valve 26 and the communication hole 21, is opened after the opening of the first valve 26. COPYRIGHT: (C)2005,JPO&NCIPI |
